To share connection strings with our existing architecture, I want to use the dbml fragment: And that works great; the tooling generates code that uses the shared connection strings via ConfigurationManager. However, if I go into the visual designer and do anything (toggle a field nullable and back again), then when it saves the dbml it trashes the element, resetting it to AppSettings and the project-specific SettingsObjectName. This is very irritating, as the WebSettings mode works a lot better
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